Q: Is 121,251 a Prime Number?
A: No, 121,251 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 121251 can be evenly divided by 1 3 13 39 3,109 9,327 40,417 and 121,251, with no remainder.
Since 121,251 cannot be divided by just 1 and 121,251, it is not a prime number.